Preparation of an antibiotic selectively effective against staphylococcus infections.

摘要

A strain (ATCC 31918) of Rothia dentocariosa which, upon fermentation, produces an antibiotic staphylocidin which is selectively effective against staphylococci, particularly those associated with S. aureus and S. epidermidis; and a process for producing suchf antibiotic by cultivation of the strain under aerobic conditions. Staphylocidin-containing products comprising the cell murein from the fermentation product are also disclosed.